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Acuracy is not critical. About 15mins is good.<br>
<br>
John<br>
<br>
Stephen Brown Jr wrote:<br>
<blockquote type="cite"
cite="middd22fa9c0705241142h5b9fe400h818b11d59e9711b0@mail.gmail.com">I
don't have much experience with a 555 or a PIC for that matter, but I
would seem to think a PIC would be easier to implement and possibly
more accurate. <br>
<br>
Just a thought.....<br>
<br>
73's<br>
Stephen<br>
K1LNX
<br>
<br>
<br>
<div><span class="gmail_quote">On 5/24/07, <b
class="gmail_sendername">John</b> <<a
href="mailto:johnk.mchugh@att.net">johnk.mchugh@att.net</a>> wrote:</span>
<blockquote class="gmail_quote"
style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">I
am in need of a schematic (or complete unit) for a timer that will run<br>
off +12v and pulse a relay every 15 mins. The relay should stay on for<br>
10secs. I think it can be done with a dual 555, one for the 15mins and<br>
the other for10secs.<br>
Anyone got any ideas. I need this to turn on the TNC and Transmitter for<br>
a solar powered wx station I'm trying to build<br>
<br>
Thanks<br>
<br>
John<br>
<br>
--<br>
John Mc Hugh, K4AG<br>
Coordinator for Amateur Radio
<br>
National Hurricane Center, WX4NHC<br>
Home page:- <a href="http://www.wx4nhc.org">http://www.wx4nhc.org</a><br>
<br>
<br>
<br>
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<br>
<pre class="moz-signature" cols="72">--
John Mc Hugh, K4AG
Coordinator for Amateur Radio
National Hurricane Center, WX4NHC
Home page:- <a class="moz-txt-link-freetext" href="http://www.wx4nhc.org">http://www.wx4nhc.org</a>
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